[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq

Further incorporation of generic irq framework.  Replacing __do_IRQ()
by proper flow handler would make the irq handling path a bit simpler
and faster.

* use generic_handle_irq() instead of __do_IRQ().
* use handle_level_irq for obvious level-type irq chips.
* use handle_percpu_irq for irqs marked as IRQ_PER_CPU.
* setup .eoi routine for irq chips possibly used with handle_percpu_irq.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2 files changed, 6 insertions, 3 deletions

diff --git a/arch/mips/tx4938/common/irq.c b/arch/mips/tx4938/common/irq.c
index 19c9ee9e3d0c..42e127683ae9 100644
--- a/arch/mips/tx4938/common/irq.c
+++ b/arch/mips/tx4938/common/irq.c
@@ -88,7 +88,8 @@ tx4938_irq_cp0_init(void)
         int i;
 
         for (i = TX4938_IRQ_CP0_BEG; i <= TX4938_IRQ_CP0_END; i++)
-                set_irq_chip(i, &tx4938_irq_cp0_type);
+                set_irq_chip_and_handler(i, &tx4938_irq_cp0_type,
+                                         handle_level_irq);
 }
 
 static void
@@ -245,7 +246,8 @@ tx4938_irq_pic_init(void)
         int i;
 
         for (i = TX4938_IRQ_PIC_BEG; i <= TX4938_IRQ_PIC_END; i++)
-                set_irq_chip(i, &tx4938_irq_pic_type);
+                set_irq_chip_and_handler(i, &tx4938_irq_pic_type,
+                                         handle_level_irq);
 
         setup_irq(TX4938_IRQ_NEST_PIC_ON_CP0, &tx4938_irq_pic_action);
 
diff --git a/arch/mips/tx4938/toshiba_rbtx4938/irq.c b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
index 2735ffe9ec28..8c87a35f3068 100644
--- a/arch/mips/tx4938/toshiba_rbtx4938/irq.c
+++ b/arch/mips/tx4938/toshiba_rbtx4938/irq.c
@@ -136,7 +136,8 @@ toshiba_rbtx4938_irq_ioc_init(void)
 
         for (i = TOSHIBA_RBTX4938_IRQ_IOC_BEG;
              i <= TOSHIBA_RBTX4938_IRQ_IOC_END; i++)
-                set_irq_chip(i, &toshiba_rbtx4938_irq_ioc_type);
+                set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
+                                         handle_level_irq);
 
         setup_irq(RBTX4938_IRQ_IOCINT,
                   &toshiba_rbtx4938_irq_ioc_action);